Home / 790,725.25-1,091,199.23-428,149

Finding the Fourth Proportional to 790,725.25, 1,091,199.23 and 428,149

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Solution

The fourth proportional to 790,725.25, 1,091,199.23 and 428,149 is: 590,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,725.25 : 1,091,199.23 = 428,149 : x
  2. Step 2: Convert to fraction form
    790,725.25/1,091,199.23 = 428,149/x
  3. Step 3: Cross multiply
    790,725.25x = 1,091,199.23 × 428,149
  4. Step 4: Simplify right side
    790,725.25x = 467,195,856,984.53
  5. Step 5: Solve for x
    x = 467,195,856,984.53/790,725.25
  6. Step 6: Final answer
    x = 590,844.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.